[ovirt-users] USB Modem in a VM

[VONDRA Alain]

Hi,
Thank you for your answer, I've tried to insert my USB modem, but it doesn't up in the Windows VM.
I've tried to insert via virt-manager without success, I can't apply the modification, however I see the modem using lsusb :

lsusb
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub Bus 001 Device 003: ID 0624:0248 Avocent Corp. Virtual Hub Bus 001 Device 004: ID 0624:0249 Avocent Corp. Virtual Keyboard/Mouse Bus 002 Device 010: ID 0572:1321 Conexant Systems (Rockwell), Inc.

I've unload the "cdc_acm" kernel module via rmmod without success.
I've also tried to edit the xml appending the ID and VENDDOR tags :

 <hostdev mode='subsystem' type='usb'>
      <source>
        <vendor id='0x0572'/>
        <product id='0x1321'/>
      </source>
    </hostdev>

Ut at the first load the config disappears...
Do I need to restart the host or restart libvirtd services ?

Thanks for your help
Alain



Alain VONDRA
Chargé d'exploitation des Systèmes d'Information
Direction Administrative et Financière
+33 1 44 39 77 76
UNICEF France
3 rue Duguay Trouin  75006 PARIS
www.unicef.fr




-----Message d'origine-----
De : Alon Bar-Lev [mailto:alonbl at redhat.com]
Envoyé : mardi 13 janvier 2015 17:47
À : VONDRA Alain
Cc : users at ovirt.org
Objet : Re: [ovirt-users] USB Modem in a VM



----- Original Message -----
> From: "VONDRA Alain" <AVONDRA at unicef.fr>
> To: users at ovirt.org
> Sent: Tuesday, January 13, 2015 5:55:01 PM
> Subject: [ovirt-users]  USB Modem in a VM
>
>
>
> Hi,
>
> Can you tell me if I can use an USB modem through one of the
> hypervisor hosts to a Windows VM ?
>
> I’d like to install a Windows Fax Server.
>
> Thank you for your answers.


should be possible using qemu args: -usbdevice host:vendor_id:product_id

in libvirt replace @VENDOR@ and @DEVICE@ to device specific properties:

<domain type='kvm'>
  <name>...</name>
  …
  <devices>
    …
    <hostdev mode='subsystem' type='usb'>
      <source>
        <vendor id='0x at VENDOR@'/>
        <product id='0x at DEVICE@'/>
      </source>
    </hostdev>
  </devices>
</domain>

if this option is not exposed in ui you can use vdsm-hooks[1] to modify the libvirt configuration and inject such device.

Regards,
Alon

[1] http://www.ovirt.org/VDSM-Hooks